Hybrid EV Travel Support Planning Across Information-Gap Routes
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Solution Overview
Problem
Existing travel support control devices for hybrid electric vehicles cannot create a suitable travel support plan when a travel route crosses between countries or regions where information required for the plan is not available.
Innovation Solution
A travel support control device that generates a travel support plan by assigning travel modes (CD mode and CS mode) to each section of the route based on look-ahead information, even when information is not acquirable in certain areas, and continues to calculate the total distance of electric traveling without switching travel modes when the vehicle is in an information non-acquirable area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the travel support control device creates a travel support plan based on look-ahead information for the entire travel route, then the running cost can be reduced and travel efficiency can be improved, but it cannot handle cases where information is not acquirable in certain areas (such as when crossing between countries)
Solution Approach 1:
The patent divides the travel route into multiple sections: sections where look-ahead information is acquirable and sections where it is not acquirable. The travel support control device creates travel support plans separately for each section, assigning travel modes based on available information in each segment rather than attempting to create a single plan for the entire route. This segmentation allows the system to handle international crossings and other information-gaps while maintaining optimization where possible.
2Measurement precision
If the device stops switching travel modes when in information non-acquirable areas, then it can continuously calculate the total distance of electric traveling, but it cannot provide optimized travel mode switching during that period
Solution Approach 1:
Before entering an information non-acquirable area, the travel support control device creates a travel support plan up to the boundary of that area, assigning travel modes in advance based on available look-ahead information. This preliminary planning ensures optimal travel mode selection for all sections where information is available, while the system can then continuously calculate electric traveling distance without interruption when entering areas where information cannot be acquired.
Data Source
AI summary
A travel support control device: creates a travel support plan in which one of travel modes including a CD mode and a CS mode is assigned to each travel section based on look-ahead information generated for a travel route to allow a hybrid electric vehicle to travel and calculates a total distance of electric traveling on the travel route; creates a travel support plan for travel sections to a travel section immediately before an information non-acquirable area in which information required for creating the look-ahead information is not acquirable and calculates the total distance of electric traveling on the travel route, when the information non-acquirable area is included in the travel route; and stops switching of the travel mode based on travel support control and continuously calculates the total distance of electric traveling on the travel route, when the hybrid electric vehicle is traveling in the information non-acquirable area.